<!DOCTYPE html><htmllang="en"><head><metacharset="utf-8"><metaname="viewport"content="width=device-width, initial-scale=1.0"><metaname="generator"content="rustdoc"><metaname="description"content="`Arc<Inode>` -> `OSInodeInner`: In order to open files concurrently we need to wrap `Inode` into `Arc`,but `Mutex` in `Inode` prevents file systems from being accessed simultaneously "><metaname="keywords"content="rust, rustlang, rust-lang, inode"><title>os::fs::inode - Rust</title><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../../../SourceSerif4-Regular.ttf.woff2"><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../../../FiraSans-Regular.woff2"><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../../../FiraSans-Medium.woff2"><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../../../SourceCodePro-Regular.ttf.woff2"><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../../../SourceSerif4-Bold.ttf.woff2"><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../../../SourceCodePro-Semibold.ttf.woff2"><linkrel="stylesheet"type="text/css"href="../../../normalize.css"><linkrel="stylesheet"type="text/css"href="../../../rustdoc.css"id="mainThemeStyle"><linkrel="stylesheet"type="text/css"href="../../../ayu.css"disabled><linkrel="stylesheet"type="text/css"href="../../../dark.css"disabled><linkrel="stylesheet"type="text/css"href="../../../light.css"id="themeStyle"><scriptid="default-settings"></script><scriptsrc="../../../storage.js"></script><scriptsrc="../../../crates.js"></script><scriptdefersrc="../../../main.js"></script>
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</a><h2class="location"><ahref="#">Module inode</a></h2><divclass="sidebar-elems"><section><divclass="block"><ul><li><ahref="#structs">Structs</a></li><li><ahref="#functions">Functions</a></li></ul></div></section><divid="sidebar-vars"data-name="inode"data-ty="mod"data-relpath="./"></div><scriptdefersrc="./sidebar-items.js"></script></div></nav><main><divclass="width-limiter"><divclass="sub-container"><aclass="sub-logo-container"href="../../../os/index.html"><imgclass="rust-logo"src="../../../rust-logo.svg"alt="logo"></a><navclass="sub"><divclass="theme-picker hidden"><buttonid="theme-picker"aria-label="Pick another theme!"aria-haspopup="menu"title="themes"><imgwidth="22"height="22"alt="Pick another theme!"src="../../../brush.svg"></button><divid="theme-choices"role="menu"></div></div><formclass="search-form"><divclass="search-container"><span></span><inputclass="search-input"name="search"autocomplete="off"spellcheck="false"placeholder="Click or press ‘S’ to search, ‘?’ for more options…"type="search"><buttontype="button"id="help-button"title="help">?</button><aid="settings-menu"href="../../../settings.html"title="settings"><imgwidth="22"height="22"alt="Change settings"src="../../../wheel.svg"></a></div></form></nav></div><sectionid="main-content"class="content"><divclass="main-heading">
<h1class="fqn"><spanclass="in-band">Module <ahref="../../index.html">os</a>::<wbr><ahref="../index.html">fs</a>::<wbr><aclass="mod"href="#">inode</a><buttonid="copy-path"onclick="copy_path(this)"title="Copy item path to clipboard"><imgsrc="../../../clipboard.svg"width="19"height="18"alt="Copy item path"></button></span></h1><spanclass="out-of-band"><aclass="srclink"href="../../../src/os/fs/inode.rs.html#1-154">source</a> · <aid="toggle-all-docs"href="javascript:void(0)"title="collapse all docs">[<spanclass="inner">−</span>]</a></span></div><detailsclass="rustdoc-toggle top-doc"open><summaryclass="hideme"><span>Expand description</span></summary><divclass="docblock"><p><code>Arc<Inode></code> -><code>OSInodeInner</code>: In order to open files concurrently
we need to wrap <code>Inode</code> into <code>Arc</code>,but <code>Mutex</code> in <code>Inode</code> prevents
file systems from being accessed simultaneously </p>
<p><code>UPSafeCell<OSInodeInner></code> -><code>OSInode</code>: for static <code>ROOT_INODE</code>,we
need to wrap <code>OSInodeInner</code> into <code>UPSafeCell</code></p>
<divclass="item-table"><divclass="item-row"><divclass="item-left module-item"><aclass="struct"href="struct.OSInode.html"title="os::fs::inode::OSInode struct">OSInode</a></div><divclass="item-right docblock-short"><p>A wrapper around a filesystem inode
to implement File trait atop </p>
</div></div><divclass="item-row"><divclass="item-left module-item"><aclass="struct"href="struct.OSInodeInner.html"title="os::fs::inode::OSInodeInner struct">OSInodeInner</a></div><divclass="item-right docblock-short"><p>The OS inode inner in ‘UPSafeCell’</p>
<divclass="item-table"><divclass="item-row"><divclass="item-left module-item"><aclass="fn"href="fn.list_apps.html"title="os::fs::inode::list_apps fn">list_apps</a></div><divclass="item-right docblock-short"><p>List all files in the filesystems</p>
</div></div><divclass="item-row"><divclass="item-left module-item"><aclass="fn"href="fn.open_file.html"title="os::fs::inode::open_file fn">open_file</a></div><divclass="item-right docblock-short"><p>Open file with flags</p>
